9699840000 has 390 divisors, whose sum is σ = 35094880106. Its totient is φ = 2580480000.

The previous prime is 9699839971. The next prime is 9699840013. The reversal of 9699840000 is 489969.

It can be written as a sum of positive squares in 5 ways, for example, as 7169347584 + 2530492416 = 84672^2 + 50304^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 23039790 + ... + 23040210.

Almost surely, 2^9699840000 is an apocalyptic number.

9699840000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9699840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17547440053).

9699840000 is an abundant number, since it is smaller than the sum of its proper divisors (25395040106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9699840000 is an equidigital number, since it uses as much as digits as its factorization.

9699840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 9699840000 is about 98487.7657376793. The cubic root of 9699840000 is about 2132.6595094140.

The spelling of 9699840000 in words is "nine billion, six hundred ninety-nine million, eight hundred forty thousand".